smith



(No Model.) 3 SheetsSheet 1.

T. SMITH.

APPARATUS FOR EXTRAGTING 00KB FROM OVENS.

No. 446,936. Patented Feb. 24,1891.

m: Nmmls VETERS 00., mormumm. wAsmmrr (No Model.)v 3 Sheets-Sheet 2.

. T. SMITH, APPARATUS FOR EXTRAGTING 00KB FROM OVENS. No. 446,936. Patented Feb. 24,1891.

(No Model.) 3 Sheets-Sheet 3.

T. SMITH. APPARATUS FOR EXTRAGTING 00KB FROM ovens.

No. 446,936. Patented Feb. 24,1891.

l Ens (20., EHOTMITHCL, wuuma'mn a c UNITED STATES FFICE.

PATENT THOMAS SMITH, OF CHAPELTOlVN, ENGLAND.

SPECIFICATION forming part of Letters Patent No. 446,936, dated February 24, 1891. Application filed September 24, 1889- Serial No. 324,879. (No model.) Patented in England August 22, 1888, No. 121112.

To all whom it may concern:

3e it known that I, THOMAS SMITH, colliery manager, a subject of the Queen of Great Britain, of Ohapeltown,in the county of York, England,have invented certain new and useful Improvements in Apparatus for Extracting Coke from Coke-Ovens, of which the following is a specification.

My invention relates to machinery for the extraction of coke from coke-ovens; and the objects of my improvements are, first, to provlde means for forcing a plate through the door of the oven and under the coke and for then withdrawing the said plate, bringing with it the coke which is to be extracted: second, to enable the said plate to be directed to all parts of the oven in succession, so as to withdraw the whole of the coke; third, to provide guides for the bar carrying the said plate and'for allowing it to be moved horizontally in any direction, and, fourth, to provide means for propelling the entire machine along rails in either direction. I attain these objects by the mechanism illustrated in the accompany 111g drawings, in which- Figure l is a side view of the entire ma chine. Fig. 2 is a top view of the machine; and Fig. 3 is a vertical section of the machine through the line A B, Fig. 1. Figs. 4c and 5 represent detail views of the bar a and rack d, the former view showing them in line, the latter showing the said arm bent at an angle. Figs. 6 and 7 represent vertical central sections of the lower part of the machine. They are respectively transverse and longitudinal.

Similarletters refer to similarparts throughout the several views.

My improved machinery maybe applied to cokeovens of different kinds; but supposing that it is to be applied to the ordinary form of beehive-oven, having a door or opening in front through which the coke is to be extracted, I arrange in front of such door or opening a horizontal bar a, having at its outer end a frame carrying the curved inclined plate I), which is forced under the coke in the oven, as described.

c c are rollers upon which the outer end of the bar a and the frame are supported.

The outer part of the bar a is shown separate and jointed to the rack at (1, so that it can be turned up when desired. This is shown more clearly in Figs. -l and 5, a representing side plates bolted to the end of the bar a and inclosing the movable part a of the bar between them.

I) is a sliding collar, which when the part a is turned down, as shown in Fig. 4, holds the two portions of the bar firmly in a straight line, but when pushed back allows the part a to be turned up, as shown in. Fig. 5.

a is a strong toothed rack formed upon or attached to the side of the bar and gearing with a toothed pinion 6, carried upon a vertical shaftf, which turns in suitable bearings g 9, carried by a strong framing 71, which is itself supported upon wheelsi 2', running upon rails, as shown,in front of the oven or ovens. The vertical shaft f has fixed upon its upper end a beveled toothed wheel 7.1, Fig. 3, gearing with a pinion Zupon the horizontal driving-shaft of a steam-engine m of any convenient description, carried upon the framing 7i, supplied with steam from a boiler, (not shown in the drawings,) and provided with reversing-gear of the usual kind, by which it can be rapidly started, stopped, and reversed. The toothed pinion e, which drives the rack, can be connected with or disconnected from the vertical shaft f by means of a coupling or clutch n, actuated by a handle 0, Fig. 3.

The bar a and rack a are supported upon rollers 19 p, and the rack is kept up to the pinion 6 by rollers r r behind it, carried upon a strong frame ".9, which is formed upon or bolted to a sleeve t, which can turn upon the bearing in which the shaft f revolves and concentric with that shaft. The lower end of the sleeve t has fixed to it a horizontal tangent toothed wheel n, which gears with and is driven by a screw 1; upon a shaft carried in bearings upon the frame and turned by the hand-wheel w.

The lower end of the vertical shaft f has fixed upon it a beveled toothed wheel on, which gears with and drives a corresponding beveled wheel 00 upon the horizontal shaft 11 carried in bearings below the frame, and the shaft 3 drives by means of beveled toothed disconnected from the shaft 1 by meansof aclutch actuated by a handle :3. The bar a is also guided and supported above and below by rollers 1) p, tnlning in bearings carried by the frame /1 and of sut'ticientlength to allow the position of the bar a and rack a to be altered round the central vertical shaft f. Guiding-wheels are shown at. 3 3, Fig. l, to steady the carriage against the rails.

The action of the apparatus is as follows: The entire machine being brought to the proper position in front ofthe oven-door, the engine is set in motion in the proper direction, and the rack a is driven forward by means of the pinion e, which is put in gear by the handle 0. The plate I) is accordingly driven under the center of the mass of echo in the oven, and is then withdrawn by reversing the engine, and the coke which has been raised and broken is withdrawn through the door as the bar is withdrawn. The bar a and rack are then turned sufficiently round the central shaftfby turning the hand-wheel 11', and the frame and plate I) are again forced in under the coke at one sideof the oven and are then withdrawn. The bar and rack are then again turned until the coke at the other side of the oven can be raised and drawn out in the same way. The entire apparatus can then by means of the handle 2 be made to travel along the rails either to the .front of another even or to any position desired.

It is to be understood that where I have described my improved apparatus as used for extracting coke from coke-ovens I include other operations of the like kind, such as the extraction of lime from lime-kilns. The improved maehinery or apparatus may be applied to rectangular or other shaped ovens, the necessary modifications being made in the method of arranging and working it, and instead of being worked by steam-power it may be worked by hand or other available power. By its use great economy of time and labor is effected, while it is effective, durable, and inexpensive and not liable to get out of order.

lam aware that mechanisn'i has been used for withdrawing coke from gas-retorts and from coke-ovens by means of books and. for introducing fuel into gas-retorts by means of: scoops actuated by chains and other gear. I do not claim, broadly, such mechanism.

'hat I claim, and. desire to secure by Letters Patent of the United States, is

1. In combination with the bar a, the frame and plate 12, rack a, shaftf, pinion e, supporting and guiding rollers 12 and 'r, the rollers p, and the means for turning the bar, rack, and frame and plate 1) round the central shaft f, substantially as and for the purpose described, and shown in the drawings.

2. The bar (1, provided with independentlymovable part; a, carrying terminal plate/1, in combination with the rack a and the plates a between which the movable part of said bar is pivoted, a sleeve which may be slipped on the joint between said bar and movable part- (i to hold them rigid oroff from said joint to allow the bending of said mov able part, a pinion gearing with said rack to guide the same, and devices for supporting and rotating said pinion, substantially as set forth.

3. In continuation with the bt1l(l,flitlll0i1tltl plate I), rack to, central shaftf, pinion (2, rollers 1), 1', and p, and means for turning the bar, rack, and frame and plate round the central shaftf, the carriage running upon rails and carrying the entire apparatus, and the means for propelling the carriage in either direction along the rails, substantially as and for the purpose described, and shown in the drawings.

In witness whereof I have hereunto signed my name in the presence of two subscrilnng witnesses.

THOMAS SMITH.

\Vltnesses:

HARRY M. DEAsn, FRANK M. CLARK. 

